During the period, about 281,000 tourists visited the island, up 42.71 percent year on year.
Starting from July 1, Hainan has increased its annual tax-free shopping quota from 30,000 yuan to 100,000 yuan per person each year.
The range of duty-free goods has also expanded, growing from 38 categories to 45, while the previous tax-free limit of 8,000 yuan for a single product has been lifted.
China released a master plan in early June on building the southern island province into a globally influential free trade port.